2003-2007 F250 & F350 6.0L Sinister Diesel Blue Spring Kit SD-FUELBLK-6.0

Increases Fuel Pressure to Ideal Levels

The 6.0L Powerstroke is getting up there in age, but thanks to an extraordinarily active aftermarket, it's still far from time to count the infamous diesel out. Case in point, Sinister Diesel's Blue Spring Kit is a low-cost fuel system upgrade that greatly extends the life of your injectors and helps to deliver a purer stream of fuel to your cylinders for consistent power and improved efficiency. This upgraded "Blue Spring" comes with gaskets and typically increases fuel pressure by +10 PSI, eliminating air in your injectors and extending the life of your fuel system.

Includes New Billet Aluminum Housing

Everything about Sinister Diesel's Blue Spring Kit is far more substantial than what your truck came with from the factory. The kit comes with a heavy-duty billet spring housing that's drastically stronger than the stock cast aluminum housing, which helps to keep the regulator sprig set and to prevent leaks, a common issue with the 6.0's factory spring housing.

Fitment: 2003-2007 F250/F350 6.0L Powerstroke

• *Designed for Off-Road/Race Purposes Only